n900
Is very pocketable - yes
has the ability to emulate ps1 games at or near fullspeed - didn't try but its almost the same as a pandora. My n900 can overclock to 1.1gHz
has decent gaming controls - not decent enough for most ps1 games.
has a minimum of 7hrs for gaming and 12hrs of music...
http://www.igep-platform.com/index.php?option=com_content&view=article&id=46&Itemid=55
Has this been mentioned before? Looks like the limit is not 256MB ram anymore but 512MB